Home / 641,943.15-885,875.19-347,591.45

Finding the Fourth Proportional to 641,943.15, 885,875.19 and 347,591.45

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Solution

The fourth proportional to 641,943.15, 885,875.19 and 347,591.45 is: 479,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,943.15 : 885,875.19 = 347,591.45 : x
  2. Step 2: Convert to fraction form
    641,943.15/885,875.19 = 347,591.45/x
  3. Step 3: Cross multiply
    641,943.15x = 885,875.19 × 347,591.45
  4. Step 4: Simplify right side
    641,943.15x = 307,922,642,722.35
  5. Step 5: Solve for x
    x = 307,922,642,722.35/641,943.15
  6. Step 6: Final answer
    x = 479,672.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.